Mika Ayenson
62298d92f4
* Convert config header to setup in note field
* Parse note field into separate setup and note field with marko gfm
* only validate and parse note on elastic authored rules and add CLI description for new DR_BYPASS_NOTE_VALIDATION_AND_PARSE environment variable
Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/integrations/google_workspace/application_added_to_google_workspace_domain.toml
- rules/integrations/google_workspace/domain_added_to_google_workspace_trusted_domains.toml
- rules/integrations/google_workspace/google_workspace_admin_role_deletion.toml
- rules/integrations/google_workspace/google_workspace_mfa_enforcement_disabled.toml
- rules/integrations/google_workspace/google_workspace_policy_modified.toml
- rules/integrations/google_workspace/mfa_disabled_for_google_workspace_organization.toml
- rules/integrations/google_workspace/persistence_google_workspace_admin_role_assigned_to_user.toml
- rules/integrations/google_workspace/persistence_google_workspace_api_access_granted_via_domain_wide_delegation_of_authority.toml
- rules/integrations/google_workspace/persistence_google_workspace_custom_admin_role_created.toml
- rules/integrations/google_workspace/persistence_google_workspace_role_modified.toml
- rules/integrations/kubernetes/execution_user_exec_to_pod.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml
(selectively cherry picked from commit a52751494e)
81 lines
2.8 KiB
TOML
81 lines
2.8 KiB
TOML
[metadata]
|
|
creation_date = "2020/11/19"
|
|
maturity = "production"
|
|
updated_date = "2022/03/31"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = "Identifies execution of a suspicious program via scheduled tasks by looking at process lineage and command line usage."
|
|
false_positives = ["Legitimate scheduled tasks running third party software."]
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Suspicious Execution via Scheduled Task"
|
|
note = """## Setup
|
|
|
|
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
|
|
"""
|
|
risk_score = 47
|
|
rule_id = "5d1d6907-0747-4d5d-9b24-e4a18853dc0a"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where event.type == "start" and
|
|
/* Schedule service cmdline on Win10+ */
|
|
process.parent.name : "svchost.exe" and process.parent.args : "Schedule" and
|
|
/* add suspicious programs here */
|
|
process.pe.original_file_name in
|
|
(
|
|
"cscript.exe",
|
|
"wscript.exe",
|
|
"PowerShell.EXE",
|
|
"Cmd.Exe",
|
|
"MSHTA.EXE",
|
|
"RUNDLL32.EXE",
|
|
"REGSVR32.EXE",
|
|
"MSBuild.exe",
|
|
"InstallUtil.exe",
|
|
"RegAsm.exe",
|
|
"RegSvcs.exe",
|
|
"msxsl.exe",
|
|
"CONTROL.EXE",
|
|
"EXPLORER.EXE",
|
|
"Microsoft.Workflow.Compiler.exe",
|
|
"msiexec.exe"
|
|
) and
|
|
/* add suspicious paths here */
|
|
process.args : (
|
|
"C:\\Users\\*",
|
|
"C:\\ProgramData\\*",
|
|
"C:\\Windows\\Temp\\*",
|
|
"C:\\Windows\\Tasks\\*",
|
|
"C:\\PerfLogs\\*",
|
|
"C:\\Intel\\*",
|
|
"C:\\Windows\\Debug\\*",
|
|
"C:\\HP\\*")
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1053"
|
|
name = "Scheduled Task/Job"
|
|
reference = "https://attack.mitre.org/techniques/T1053/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1053.005"
|
|
name = "Scheduled Task"
|
|
reference = "https://attack.mitre.org/techniques/T1053/005/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0003"
|
|
name = "Persistence"
|
|
reference = "https://attack.mitre.org/tactics/TA0003/"
|
|
|